Package of nested purlins



April 9, 1957 G. E. KENNEDY PACKAGE OF NESTED PURLI NS Filed July 8, 1954 INVENTOR.

Bil/$706M? 2,7 88,122 PACKAGE F NESTED PURLINS George E. Kennedy, Pasadena, Calif., assignor to Gregory Industries, Inc., Detroit, Miclu, a corporation of Michigan Application Indy 8, 1954, Serial No. 442,14;

1 Claim. (c1. 206-65) The present invention relates to the method of constructing buildings and in particular to sheet metal buildings wherein sheets are fastened to metal supports.

In the past the practice has been to erect supporting purlins, channel members, or angle irons into the framework of a building prior to the stud welding of studs thereto for supporting the sheet metal covering of the building. It was generally believed that the erection of these purlins prior to studding or stud welding was necessary to ensure the welding of the studs in the correct place or location so that each stud would pass through the crown of the corrugated sheet which it was to hold. The general building trade recognized the problem of having the studs spaced correctly along the purlin so that all of the corrugated sheets on the side or roof of the building would be properly aligned. In actual practice they generally applied the studs to the purlin just prior to the fastening of corrugated sheets. This procedure was expensive and resulted in the need for considerable labor in the job site construction of the building.

In the present invention the purlins are studded in a factory or at some point remote from where the building is to be erected. The studs are spaced on the purlins so that each stud will pass through the respective crown of the corrugated sheet. In the present invention the studs are welded to the purlins in a factory, the pre- A studded purlins packaged and shipped to the construction site. Following this the purlins are erected in the building structure, the sheet metal impaled over the studs and secured thereto to complete the building. Thus, one of the objects of the invention is to provide an economical and practical method of constructing buildlngs.

Another object of the invention is to provide a method of packaging purlins wherein one purlin protects the studs on an adjacent purlin.

Other objects and a fuller understanding of the in vention will become apparent from the description and claim in conjunction with the drawings in which:

Figure 1 represents an end view of a purlin with a stud welded thereto;

Figure 2 represents a plan view of a purlin with several studs welded thereto;

Figure 3 represents a package of purlins with the studs welded thereto;

Figure 4 is a fragmentary plan view of a portion of a completed building; and

Figure 5 illustrates the arrangement for packaging purlins of a modified design.

In the present invention a purlin is referred to as any metal supporting member in a building or similar structure which holds and supports a sheet metal covering. These purlins may be channel shaped, bar shaped or in the shape of angle irons. In Figures 1 and 2 the purlin of channel shape is illustrated as having a plurality of sheet attaching or supporting studs 11 end are or stud welded thereto. These studs 11, commonly known in the 2,788,122 Patented Apr. 9, 3957 trade as Rivweld studs, may be of the type illustrated in Patent No. 2,663,270, issued December 22, 1953, to Friedly, entitled Composite Stud or they may be of other generally used studs known to the industry.

in the first step of performing the present invention the purlins it which may be up to twenty feet or more in length are arranged so that the studs 11 will be welded thereto at the correct spacings therealong. The plurality of the studs 11 are then welded on each purlin preferably by the end arc or stud welding method commonly known in the industry. The distance between the studs 11 on a particular purlin was previously determined so that each stud will engage a particular location in a sheet which will later be placed over the stud. When corrugated sheets are to be used, the studs are spaced so that they will pass through the crown of the respective corrugations.

After the studs 11 have been welded to the purlins 10, a plurality of the purlins are packaged as illustrated in Figure 3. In this instance the purlins 10 are of channel shape with the studs being located on the outside of one of the legs of the channel. The purlins are interfitted so that the studs on one purlin are within the outside boundaries or corners of another purlin. Thus each purlin protects the studs on an adjacent purlin to prevent their being damaged during shipping. After the purlins have been arranged in position for shipping, a band i2 is wrapped around the purlins to hold them in the shipping package. The package is then shipped to the job site where the building is to be erected. In the next operation of the invention the purlins are erected on the building at spaced intervals with the studs on all of the purlins being arranged so that they may receive the sheet metal. After the purlins 10 are secured in place, large sheets of sheet metal, such as corrugated sheet 13 illustrated in Figure 4, are placed against the ends of their respective studs 11, and are then impaled over the Rivweld studs 11 and the studs upset or riveted over to secure the sheets thereto.

in Figure 5 the purlins 10' are in the form of angle irons and are arranged for shipping so that one angle iron purlin protects the studs 11 on an adjacent angle iron purlin. In this instance the inside surface of one leg of the angle iron purlin engages the outside surface of the adjacent angle iron purlin and the inside surface of the other leg engages the end of the stud on the other angle iron purlin. The band 12 which is secured around all of the angle irons in the package hold the purlins securely in place so that they cannot move and thereby damage the studs which have been welded thereto in the factory. It is noted that all the studs in this package are protected by an adjacent purlin except those on the outside purlin. These studs are protected by a strip of Wood or other similar packaging material 16 which will prevent the studs being bumped during shipment. After the angle irons or purlins have been transported to the job site, they are erected into the building and the sheets impaled over the studs the same as when the channel shaped purlins are used.

Although this invention has been described in its preferred form with a certain degree of particularity enabling others to reproduce the invention, it is understood that the present disclosure has been made by way of ex ample and that numerous modifications and changes in the details may be resorted to without departing from the spirit and scope of the invention as defined in the ciaim which is made a part hereof.

What is claimed is:

In a package of purlins, a first elongated channel shaped member having a relatively flat bottom and spaced parallel sides provided with inside and outside surfaces.

a first i plurality of studsssecuredto and. extending transversely from the outside surface of one of said sides of said first member a distance less than the distance betweenfthe sides and parallel with said bottom, a secon'd elongated -:channel shape'd :member having a relatively fiat bottom and having spaced and parallel: sides provided with inside nand outside surfaces, :a :second plurality of studs 'secured to and :extending transversely from 1the outside surface-of one ofssaid sides of said-second member aidistance less thanfthe distance between the sides 'ano parallel withthe saidibottom said elongated chansides oflthe secon'd member disposed between the sides ofathe first rmember :and-withsaid-one of said sides of said Ifirst channel vmemberengaging :the'bottom of the second channel memberaandgsaidone of said sides of said second channel member engaging the bottom, of the first channel membenat leastssome of the studs on the firsttchannel. member engaging .the ,inside -surface ,of .the

References Cited in the file of this patent UNETED STATESPATENTS 1,529,697 Hall Mar. 17, 1925 1,557,121 Vogel Oct. 13, 1925 2,100,624 Beckwith Nov, 30, 1937 2,566,662 Haeger Aug. 28, 1951 FOREIGN PATENTS 62,193 Netherlands Dec. '15, 1948 986,859 France Apr. '4, 1951 

